朝天盆式朝天橡膠支座下(xia)面應設置(zhi)支承(cheng)墊石，支承(cheng)墊石混(hun)凝土強度等級不(bu)宜低于(yu)C40.墊石高度應考慮 支座裝(zhuang)(zhuang)置(zhi)、維(wei)護和替換的方(fang)便。支承(cheng)墊石及墩頂混(hun)凝土應該(gai)按(an)JTG D62-2004的局部承(cheng)壓部件要求裝(zhuang)(zhuang)備(bei)相應的鋼筋網。墩臺頂面需按(an)錨固套(tao)筒(tong)規格、數量預(yu)留栓孔(kong)(kong)。預(yu)留栓孔(kong)(kong)的直(zhi)徑和深度大于(yu)套(tao)筒(tong)直(zhi)徑和長度50mm~60mm,中心誤(wu)差不(bu)該(gai)超過10mm。

　　朝天盆式朝天橡膠支座運輸到現場后，應該(gai)開箱(xiang)檢查支座各部(bu)分零件及裝(zhuang)箱(xiang)單，檢查合(he)格后再放入(ru)包裝(zhuang)箱(xiang)，裝(zhuang)置時再開箱(xiang)。活(huo)動支座在(zai)開箱(xiang)后應該(gai)留意對聚(ju)四氟乙烯板(ban)(ban)(ban)和不銹鋼冷軋(ya)鋼板(ban)(ban)(ban)的保(bao)護，避(bi)免劃傷或(huo)許有贓(zang)物附(fu)著(zhu)在(zai)乙烯板(ban)(ban)(ban)和冷軋(ya)鋼板(ban)(ban)(ban)的表面，而且檢查5201-2硅脂(zhi)是否注滿。

　　盆式朝天橡膠支座裝置時，支(zhi)(zhi)(zhi)承(cheng)墊(dian)(dian)石(shi)頂面(mian)(mian)應(ying)該鑿毛(mao)，并用清水(shui)沖(chong)去墊(dian)(dian)石(shi)上面(mian)(mian)的(de)雜物，待墊(dian)(dian)石(shi)表面(mian)(mian)枯(ku)燥后(hou)，在錨固螺栓(shuan)孔位置以外的(de)支(zhi)(zhi)(zhi)承(cheng)墊(dian)(dian)石(shi)頂面(mian)(mian)涂(tu)滿環氧砂(sha)漿調平層(ceng)，支(zhi)(zhi)(zhi)座(zuo)就位后(hou)、對(dui)中并調整水(shui)平后(hou)，用墊(dian)(dian)塊將支(zhi)(zhi)(zhi)座(zuo)墊(dian)(dian)起。

　　用環(huan)氧砂(sha)(sha)漿或(huo)強度等級較高的(de)砂(sha)(sha)漿灌注套筒周圍空隙(xi)及支(zhi)(zhi)座(zuo)底(di)板(ban)四(si)周未(wei)填滿環(huan)氧砂(sha)(sha)漿的(de)位(wei)置，而且(qie)將砂(sha)(sha)漿搗(dao)實，完工后應該將支(zhi)(zhi)座(zuo)底(di)板(ban)以外溢出的(de)砂(sha)(sha)漿清理干凈，砂(sha)(sha)漿硬化后再拆(chai)去支(zhi)(zhi)座(zuo)墊塊。